Unlock Your Oracle Future: Master Oracle Cloud Infrastructure 2025 Networking Professional with 1Z0-1124-25 Prep

Correct : A

Goal: Force spoke-to-spoke traffic via a network appliance in hub-and-spoke topology.

Option A: Static routes on DRG to appliance ensure transitive routing---correct.

Option B: Service Gateway is for OCI services---incorrect.

Option C: Internet Gateway is public, not hub-and-spoke---incorrect.

Option D: LPG bypasses the appliance---incorrect.

Conclusion: Option A is necessary.

Oracle notes:

'In a hub-and-spoke topology, configure DRG route tables with static routes to the network appliance's private IP for transitive routing between spokes.'

This supports Option A. Reference: Hub-and-Spoke Topology - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/hubspoke.htm).

Correct : B

Goal: Balance global load balancing with regional WAF protection near users.

Option A: Single WAF in one region creates a bottleneck and increases latency---insufficient.

Option B: GLB distributes globally to regional Load Balancers, each with a WAF, ensuring protection close to users---correct.

Option C: WAF before GLB centralizes protection, adding latency and a single failure point---incorrect.

Option D: Source IP routing with regional WAFs is less optimal than GLB's health-based routing---less effective.

Conclusion: Option B optimizes both goals.

Oracle states:

'OCI GLB distributes traffic across regions. Pair with regional Load Balancers and WAFs for localized protection and optimal performance.'

This supports Option B. Reference: Global Load Balancer Overview - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Balance/Concepts/globalbalance.htm).

Correct : A

Requirements: VCN isolation, inter-VCN traffic via on-premises appliances.

DRG Role: Central hub for VCN and FastConnect connectivity.

Evaluate Options:

A: DRG routes inter-VCN traffic via FastConnect to on-premises; meets isolation and inspection needs.

B: Transit Routing allows direct VCN-to-VCN communication, bypassing on-premises; incorrect.

C: Bypassing DRG with VPNs is complex and unsupported; incorrect.

D: LPG is for intra-region peering, not DRG-to-FastConnect; incorrect.

Conclusion: Option A enforces the policy via DRG route tables.

DRG route tables control traffic flow. The Oracle Networking Professional study guide states, 'To force inter-VCN traffic through an on-premises network via FastConnect, configure DRG route tables to route VCN-destined traffic to the FastConnect attachment, ensuring isolation and inspection' (OCI Networking Documentation, Section: DRG Routing). This setup leverages a single DRG effectively.

Correct : D

Objective: Filter BGP routes on OCI to accept only specific on-premises prefixes.

BGP Attributes Overview:

AS Path Prepending: Lengthens AS path to influence route preference, not filtering.

MED: Influences exit point selection, not route acceptance.

RD/RT: Used in MPLS VPNs for tenant isolation, not simple prefix filtering.

Prefix Lists: Directly filter prefixes based on IP ranges.

Evaluate Options:

A: AS Path Prepending affects preference, not filtering; unsuitable.

B: MED influences path selection, not route rejection; incorrect.

C: RD/RT is for VPN contexts, not applicable here.

D: Prefix Lists explicitly allow/deny prefixes, meeting the requirement.

Conclusion: Prefix Lists on the FastConnect virtual circuit provide precise control over accepted routes.

Prefix Lists are the most effective BGP tool for filtering routes in OCI. The Oracle Networking Professional study guide notes, 'Prefix Lists can be applied to FastConnect virtual circuits to filter BGP advertisements, ensuring only approved prefixes are learned by OCI' (OCI Networking Documentation, Section: FastConnect and BGP). This prevents routing conflicts by rejecting unwanted prefixes, aligning with the security and control requirements.

Correct : A

Problem Scope: Identify and adjust WAF rules causing false positives in Detection mode without disrupting traffic.

Detection Mode Behavior: Logs potential violations without blocking, allowing analysis.

Evaluate Options:

A: Use OCI Logging Analytics to pinpoint rule IDs from logs, then set rules to 'log only' for testing; efficient and non-disruptive.

B: Disabling all rules risks security and is time-consuming; inefficient.

C: Increasing sensitivity worsens false positives; counterproductive.

D: Whitelisting IPs is a temporary fix, not scalable or diagnostic; unsuitable.

Conclusion: Logging analysis with rule adjustment is the most efficient approach.

OCI WAF logs provide detailed insights for troubleshooting. The Oracle Networking Professional study guide states, 'In Detection mode, WAF logs all triggered rules, which can be analyzed in OCI Logging Analytics to identify false positives. Rules can then be adjusted to 'log only' to refine policies without affecting traffic' (OCI Networking Documentation, Section: Web Application Firewall). This method ensures precision and minimal disruption.